. >>> president obama and republican presidential challenger mitt romney spent their day in new york city. president obama addressing the united nations, urging fellow leaders to take a stand against the violence in the muslim world. he condemned the antiislam film that sparked the protest overseas but said nothing justifies mindless violence. the president also had a message for iran and its nuclear program. >> make no mistake. a nuclear armed iran is not a challenge that could be contained. it would threaten the nation of israel, the security of gulf nations and the stability of the global economy. >> and after the president's u.n. address he headed cross town to speak to former president bill clinton's gathering of global leaders and that is where mitt romney had begun his day. romney took a political jab at president obama in his speech implying that he's not done enough to confront foreign policy challenges in libya,egypt and iran. during a stop in ohio, romney said his administration would not characterize middle east unrest as a bump in the road. >> we have a president who tak